名詞 antimetabolite:

1. an antineoplastic drug that inhibits the utilization of a metabolite

an.ti.me.tab.o.lite

n.（名詞）
A substance that closely resembles an essential metabolite and therefore interferes with physiological reactions involving it.
抗代謝物，抗代謝藥：一種與基礎代謝物非常相似的物質，因此能夠干預包含代謝物的生理反應